PULLEY GP-LOWER 1313727 - Caterpillar

face="Courier New">Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
100% 100% 0% 0% 0% 0%
This is a 4.0-hour job for Group 3
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.
EXAMPLE COPY OF OWNER NOTIFICATION
XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999
SAFETY - PRODUCT IMPROVEMENT PROGRAM FOR PINNING THE TURBOCHARGER HOUSING
MODELS INVOLVED - CERTAIN 3512C AND 3516C MARINE ENGINES
Dear Cat Product Owner:
The turbocharger needs to be reworked on the products listed below. The existing turbocharger housing can rotate, causing a failure of the exhaust bellows, which may, in conjunction with other factors or circumstances, result in a risk of personal injury or death. You will not be charged for the service performed.
Contact your local Cat dealer immediately to schedule this service. The dealer will advise you of the time required to complete this service.
If you are no longer the owner of this product(s), please contact your local Cat dealer so that our records can be updated.
You may now search for open Safety Service Letters by entering your product serial number(s). Visit the SAFETY.CAT.COM website and click on the Product Safety page for more information. Please refer the dealer to their Service Letter dated 12Nov2014 when scheduling this service.
We regret the inconvenience this may cause you, but urge you to have this service performed for your safety and satisfaction.
Caterpillar Inc.
Identification #(s)
Attached to 12Nov2014 Service Letter
Rework Procedure
Apply the following procedure to both turbochargers on the engine.
1. Prior to changing out the clamps, loosen the two bellows that connect to the turbine housing so that the turbo is isolated and there is no force pulling on the turbine housing (Image1.1.1). Check that the turbo housing is aligned properly; make sure the two mating flanges are flush all the way around.
It may be necessary to loosen the turbo cartridge bolts to allow the cartridge to move and align the cartridge flange with the turbo flange (Image1.1.2).
Image1.1.1
Image1.1.2
2. The housing must be retained while the clamp is off. Use a c-clamp to hold the housing in place (Image1.2.1).
Image1.2.1
3. Install an old v-band clamp to be modified for use as a drill guide. Fabricate the drill guide using an old v-band clamp and weld a lead boss to the old v-band clamp. Ensure this boss is centered on the old v-band clamp (Image1.3.1, Image1.3.2).
Image1.3.1
Image1.3.2
4. Set the drill guide in place for drilling. Drill a hole with a 6.5mm drill bit to a maximum drill depth of 12.5mm. The drilled hole must be centered between the flange halves on the top side of the flanges (Image1.4.1).
Image1.4.1
5. Set 1A-2036 Dowel Pin in place (Image1.5.1).
Pin must be clearance fit, not pressed fit. The dowel should not be over a 0.5mm maximum protrusion.
Image1.5.1
6. Once the dowel pin is in place, install 372-5858 Clamp following Engine News, SEBD9761, "A New Band Clamp Is Available for Turbochargers on Certain 3500 and C175-16 Engines" (Image1.6.1, Image1.6.2).
Refer to the Disassembly and Assembly for the engine for the procedure to install the 302-6504 Bellows Assembly.
Image1.6.1
Image1.6.2